Senior Astronomer: SETI Institute
Host: Big Picture Science radio show and podcast
Author: Confessions of an Alien Hunter: A Scientist’s Search for Extraterrestrial Intelligence
How will humanity first discover ET Life?
Best guess: Technosignature
Details: Large technological structures will be discovered in the next 20 years, analogous to the
ancient Egyptian pyramids.
Unlike signals, artifacts are always present, even when those who have built them may have
disappeared.
Credits for video images
– NASA planet imagery
– NASA, Mars Rover
– NASA, Cassini Orbiter
– Allen Telescope Array, Seth Shostak
– Dyson sphere, Danielle Futselaar
– Giant Magellan Telescope, GMTO Corporation
– Pyramids at Giza, Seth Shostak
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